623546 has 16 divisors (see below), whose sum is σ = 1166400. Its totient is φ = 242880.

The previous prime is 623537. The next prime is 623563. The reversal of 623546 is 645326.

623546 is nontrivially palindromic in base 13.

623546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×623546² = 777619228232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1871 + ... + 2178.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2⁶²³⁵⁴⁶ is an apocalyptic number.

623546 is a deficient number, since it is larger than the sum of its proper divisors (542854).

623546 is a wasteful number, since it uses less digits than its factorization.

623546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069.

The product of its digits is 4320, while the sum is 26.

The square root of 623546 is about 789.6492892417. The cubic root of 623546 is about 85.4324443853.

The spelling of 623546 in words is "six hundred twenty-three thousand, five hundred forty-six".